The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2010
Filed:
Mar. 14, 2008
Alain Lacaze, Essert, FR;
Alain Lacaze, Essert, FR;
ALSTOM Technology Ltd., Baden, CH;
Abstract
A matrix converter for the conversion of a polyphase alternating current into a desired alternating output current in which m phases of the polyphase alternating current are converted into alternating output current with n (n<m) phases of a load by a multiple number of controllable bidirectional switches. The converter includes at least one stage, and in that at least one stage of the converter each phase of the polyphase alternating current is controlled by a controllable bidirectional switch. The at least one stage of the converter is formed by a two-dimensional array of stage stacks of switching elements which stage stacks are arranged substantially parallel to each other along a stack direction perpendicular to the plane of the matrix converter, and wherein the input of the stage stacks is provided by bus bars located on one side of the stage stacks.